Instruction manual

73
ELECTRICAL EQUIPMENT
See wiring diagrams of automobiles in Appendix 4.
Maintenance of the Alternator
The automobiles could be provided with the alternator with
a built-in rectifier operating in conjunction with a voltage
regulator. The automobiles could be equipped with alternators
of two types:
- 665.3701-01 or 161.3771 - with brush assembly;
- Ã700À.30 or 957.3701-10 - without brushes.
Check the alternator function in accordance with ammeter
reading. When the ignition and the engine are off, the ammeter
shows the voltage aross the battery terminal, and after the engine
starting - the voltage across the alternator terminal.
The voltage across the alternator terminal should be
13.5 - 14.8 V.
If the voltage is increased, check the alternator or the voltage
regulator and eliminate the defect.
The built-in integral voltage regulators are not repaired. In
case of breakage of the regulator replace it for the regulator of
the same type.
Periodically check the brush assembly and the contact part
of the integrated voltage regulator for proper condition. To do
this, remove the alternator 665-3701 from the automobile, and
remove the brush assembly on the alternator 161.3771. Replace
worn-out brushes.
Maintenance of the Storage Battery
The storage battery is installed in the cab on the left, behind
the wheel mud guard.
The storage battery is connected parallel to the alternator.
If in the service period of the automobile, the storage battery is
gradually discharging or is excessivly charging by the alternator,
and the electrolyte begins to gas, check the alternator for proper
condition.
Keep the storage battery clean and in charged state, protect
its leads and terminals from oxides as indicated in Lubrication
Table.